This App created Spam on my phone

This App is totally unacceptable absolute Spam. It created a Top Spammer Contact on my phone, then kept multiplying the same contact to about 20 duplicate contacts. When I tried to delete the 1st of the duplicate contacts. It froze so I now have NO Contact access. I deleted the virus-infected App, but still have the 20 virus- infected frozen Contacts on my phone. HELP!

Kherma about NumberGuru: Lookup Phone Calls